System Performance Troubleshooting

What was the primary cause of the performance and connectivity issues identified in the troubleshooting process?

Which command was used to check application logs for error messages related to crashes?

What was one of the positive outcomes reported after the technician's monitoring of the system’s performance?

Which of the following steps was NOT part of the technician's troubleshooting process?

What is emphasized as a crucial practice for optimal performance in the case study?

What was the initial symptom reported by the developer regarding the system's performance?

What action was taken to address the identified resource-intensive processes?

Which command was used to check the disk space on the system?

What did the error logs in the terminal indicate to the developer?

What was the recommendation made by the technician regarding memory?

Which command was utilized to monitor CPU and memory usage?

What diagnostic command did the technician run to check network connectivity?

Which step was taken to refresh system resources before further troubleshooting?

Initial Symptoms

System experienced slow performance, application crashes, and intermittent network connectivity
Issues started about three days ago, after a new software package was installed
Error logs indicated memory issues

Troubleshooting Process

Step 1: Gather Information
- Developer reported issues, providing details about when they started, recent changes, and error messages
Step 2: Basic Checks
- System rebooted to clear temporary files
- System updates were run to ensure all packages were up-to-date
Step 3: Resource Monitoring
- System resources were monitored using top and htop commands
- System was running low on memory, with a specific process consuming excessive resources
Step 4: Disk and Memory Checks
- Disk space was checked using df -h command, revealing a near-full root partition
- Memory usage was checked using free -h command, indicating heavy utilization of swap space
Step 5: Network Diagnostics
- Network configuration was checked using ifconfig and ping commands, finding intermittent packet losses
Step 6: Application Logs
- Application logs were checked using journalctl -xe and cat /var/log/syslog, revealing memory allocation failures
Step 7: Monitor Performance
- System performance was monitored for a week
- Developer reported improvements, including better system performance, reduced crashes, and stable network connection

Key Takeaways

Gathering detailed information from users is crucial for successful troubleshooting
Regular maintenance, including updates and disk space management, is vital for optimal system performance
Monitoring system resources helps identify and resolve performance bottlenecks
Checking logs provides valuable insights into application failures

This quiz covers the troubleshooting process for system performance issues, including steps to identify problems related to memory, disk space, and network connectivity. It focuses on effective resource monitoring and problem-solving techniques in IT environments.